What is 50% of $72 $3.60 $36

Solve this system of equations. 12x − 18y = 27 4x − 6y = 10

Will give the box plots below show the math scores of students in two different classes: class a 55 72 75 89 95 class b 55 70 75 94 100 based on the box plots, which statement is correct? a: the median score of class a is greater than the median score of class b. b: the lower quartile of class a is greater than the lower quartile of class b. c: the upper quartile of class a is greater than the upper quartile of class b. d: the maximum score of class a is greater than the maximum score of class b.

Angle a and angle b are both supplementary angles. what must be true about the angles?